OK Here it is in a nut shell (opposed to a pumpkin shell)
First off Peter Peter as so many others of us do, loved pumpkin and I mean just loved it. He also was an emotional eater so when he couldn't keep his wife he indulged in one of his all time favorites pumpkin. When he finished the pumpkin and began looking at the empty shell, he realized he could keep his wife in there and keep her very well. This solved both his emotional eating problem and keeping his wife, so they lived happily ever after.
Wow I totally have way to much time on my hands. lol